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+//===========================================
+// Lumina-DE source code
+// Copyright (c) 2015, Ken Moore
+// Available under the 3-clause BSD license
+// See the LICENSE file for full details
+//===========================================
+// This class is the sample plugin for a ScreenSaver animation
+//===========================================
+#ifndef _LUMINA_DESKTOP_SCREEN_SAVER_FIREFLIES_ANIMATION_H
+#define _LUMINA_DESKTOP_SCREEN_SAVER_FIREFLIES_ANIMATION_H
+
+#include "global-includes.h"
+#include "BaseAnimGroup.h"
+#include <QSequentialAnimationGroup>
+#include <QGraphicsOpacityEffect>
+
+class Firefly : public QSequentialAnimationGroup{
+ Q_OBJECT
+private:
+ QWidget *fly;
+ QPropertyAnimation *movement, *flash;
+ int maxX, maxY; //maximum jitter in X/Y directions
+ QSize range;
+private slots:
+ void LoopChanged(){
+ //Adjust the movement animation a bit
+ movement->setStartValue(movement->endValue()); //start at the previous end point
+ QPoint pt = movement->startValue().toPoint();
+ QPoint diff( (qrand()% maxX) - (maxX/2), (qrand()% maxY) - (maxY/2) );
+ //Need to ensure it stays in the current box
+ if( (pt.x()+diff.x()) < 0 || (pt.x()+diff.x())>range.width()){ pt.setX(pt.x() - diff.x()); } //reverse the direction - otherwise will go out of bounds
+ else{ pt.setX( pt.x() + diff.x() ); }
+ if( (pt.y()+diff.y()) < 0 || (pt.y()+diff.y())>range.height()){ pt.setY(pt.y() - diff.y()); } //reverse the direction - otherwise will go out of bounds
+ else{ pt.setY( pt.y() + diff.y() ); }
+ movement->setEndValue(pt);
+ movement->setDuration( qrand() %500 + 1000); //between 1000->1500 ms animations for movements
+ //Adjust the flash duration/size a bit
+ flash->setDuration(qrand() %200 + 500); //500-700 ms
+ int sz = qrand()%4 + 4; //6-10 pixel square
+ //flash->setKeyValueAt(0.5, (qrand()%50) /100.0);
+ //fly->resize(sz,sz);
+ flash->setKeyValueAt(0.5, QSize(sz,sz)); //half-way point for the flash
+
+ fly->show();
+ }
+ void stopped(){ fly->hide(); }
+
+public:
+ Firefly(QWidget *parent) : QSequentialAnimationGroup(parent){
+ fly = new QWidget(parent);
+ range = parent->size();
+ maxX = range.width()/4; maxY = range.height()/4;
+ QString B = QString::number(qrand()%70);
+ QString RY = QString::number(qrand()%200+50);
+ QString style = "background-color: qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0 rgba(245, 245, 143, 200), stop:0.83871 rgba(%1, %1, %2, 140), stop:0.99 rgba(0, 0, 0, 255), stop:1 transparent);";
+ fly->setStyleSheet(style.arg(RY, B) );
+ //setup the movement animation
+ movement = new QPropertyAnimation(fly);
+ movement->setTargetObject(fly);
+ movement->setPropertyName("pos");
+ movement->setEndValue( QPoint( qrand() % range.width(), qrand()%range.height()) ); //on anim start, this will become the starting point
+ //setup the flashing animation
+ /*QGraphicsOpacityEffect *eff = new QGraphicsOpacityEffect(parent);
+ fly->setGraphicsEffect(eff);
+ flash = new QPropertyAnimation(eff, "opacity");*/
+ flash = new QPropertyAnimation(this);
+ flash->setTargetObject(fly);
+ flash->setPropertyName("size");
+ flash->setStartValue(QSize(0,0));
+ flash->setEndValue(flash->startValue());
+ //fly->setProperty("opacity",0);
+ //flash->setPropertyName("opacity");
+ //flash->setStartValue(0);
+ //flash->setEndValue(0);
+ //now setup the order of the animations
+ this->setLoopCount(100); //do this 100 times
+ //Roughly half the number of fireflies with start with movement/flash
+ if(qrand()%2 == 1){
+ this->addAnimation(movement);
+ this->addAnimation(flash);
+ }else{
+ this->addAnimation(flash);
+ this->addAnimation(movement);
+ }
+ //Start up this firefly
+ LoopChanged(); //load initial values
+
+ fly->setGeometry( QRect(movement->startValue().toPoint(), flash->startValue().toSize()) );
+ connect(this, SIGNAL(currentLoopChanged(int)), this, SLOT(LoopChanged()) );
+ connect(this, SIGNAL(finished()), this, SLOT(stopped()) );
+ }
+ ~Firefly(){}
+
+};
+
+class FirefliesAnimation : public BaseAnimGroup{
+ Q_OBJECT
+private:
+ QList<Firefly*> fireflies;
+
+public:
+ FirefliesAnimation(QWidget *parent) : BaseAnimGroup(parent){}
+ ~FirefliesAnimation(){
+ this->stop();
+ //while(fireflies.length()>0){ fireflies.takeAt(0)->deleteLater(); }
+ }
+
+ void LoadAnimations(){
+ while(fireflies.length()>0){ fireflies.takeAt(0)->deleteLater(); }
+ canvas->setStyleSheet("background: black;");
+ int number = readSetting("number",qrand()%30 + 50).toInt();
+ for(int i=0; i<number; i++){
+ if(fireflies.length()>number){ continue; }
+ Firefly *tmp = new Firefly(canvas);
+ this->addAnimation(tmp);
+ fireflies << tmp;
+ }
+
+ }
+
+};
+#endif
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